pwmdMainWindow.h

   1 /*
   2     Copyright (C) 2010-2024 Ben Kibbey <bjk@luxsci.net>
   3
   4     This file is part of qpwmc.
   5
   6     This library is free software; you can redistribute it and/or
   7     modify it under the terms of the GNU Lesser General Public
   8     License as published by the Free Software Foundation; either
   9     version 2.1 of the License, or (at your option) any later version.
  10
  11     This library is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14     Lesser General Public License for more details.
  15
  16     You should have received a copy of the GNU Lesser General Public
  17     License along with this library; if not, write to the Free Software
  18     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
  19     USA
  20 */
  21 #ifndef PWMDMAINWINDOW_H
  22 #define PWMDMAINWINDOW_H
  23
  24 #include <QMainWindow>
  25 #include <QTreeWidget>
  26 #include <QListWidget>
  27 #include <QValidator>
  28 #include <QStringList>
  29 #include <QClipboard>
  30 #include <QToolBar>
  31 #include <QProgressBar>
  32 #include <QPushButton>
  33 #include <QUrl>
  34
  35 #include "pwmd.h"
  36 #include "pwmdRemoteHost.h"
  37 #include "pwmdClientDialog.h"
  38 #include "pwmdOptionsDialog.h"
  39 #include "pwmdFileOptionsDialog.h"
  40 #include "pwmdOpenDialog.h"
  41 #include "pwmdSearchDialog.h"
  42 #ifdef Q_OS_ANDROID
  43 #include "pwmdAndroidJNI.h"
  44 #endif
  45 #include "ui_pwmdMainWindow.h"
  46
  47 class ClientInfo;
  48 class PwmdFileOptionsWidget;
  49
  50 class PwmdMainWindow : public QMainWindow
  51 {
  52  Q_OBJECT
  53  public:
  54   // The 'socket' parameter may be a PwmdRemoteHost that has been
  55   // previously created in the Options and is the label of the
  56   // configured host. If not found then it is treated as a local socket.
  57   PwmdMainWindow(const QString & filename = 0,
  58               const QString & name = "qpwmc", bool lock = true,
  59               const QString & path = 0, const QString & socket = 0,
  60               QWidget * parent = 0);
  61   ~PwmdMainWindow();
  62
  63   // Returns the element path of the selected item in the element tree
  64   // with each element separated by the specified character.
  65   QString elementPath (const QString & sep = "\t");
  66
  67   // Returns the opened data filename.
  68   QString filename ();
  69
  70   // Returns the URL of the connected socket.
  71   QString socket ();
  72
  73  private slots:
  74   void slotClientLockStateChanged (bool);
  75   void slotElementSelected (QTreeWidgetItem *, QTreeWidgetItem *);
  76   void slotElementClicked (QTreeWidgetItem *, int);
  77   void slotToggleHiddenContent (bool);
  78   void slotRefreshElementTree ();
  79   void slotContentChanged ();
  80   void slotContentModified (bool);
  81   void slotNewElement ();
  82   void slotNewRootElement ();
  83   void slotNewElementFromPopup ();
  84   void slotNewSiblingElement ();
  85   void slotNewSiblingElementFromPopup ();
  86   void slotDeleteElement ();
  87   void slotRenameElement ();
  88   void slotSearchShiftEnterPressed ();
  89   void slotAdvancedSearchAction ();
  90   void slotAdvancedSearch (const QString &);
  91   void slotAdvancedSearchNext (const QString &, bool, bool, bool, bool, bool);
  92   void slotAdvancedSearchFinished (int);
  93   void slotFindElement ();
  94   void slotFindTextChanged (const QString &);
  95   void slotFindFinished ();
  96   void slotEditElements ();
  97   void slotResolveTargets ();
  98   void slotExpandAll (bool);
  99   void slotReload ();
 100   void slotDndCopyElement ();
 101   void slotDndMoveElement ();
 102   void slotDndCreateTarget ();
 103   void slotExpandElement ();
 104   void slotCollapseElement ();
 105   void slotRenameElementUpdate (QWidget *);
 106   void slotElementEntered (QTreeWidgetItem *, int);
 107   void slotElementEditorClosed (QWidget *,
 108                           QAbstractItemDelegate::EndEditHint);
 109   void slotConnectionStateChanged (Pwmd::ConnectionState);
 110   void slotInsertContent ();
 111   void slotRefreshContent ();
 112   void slotSaveToFile ();
 113   void slotCopyContentToClipboard ();
 114   void slotSaveContent ();
 115   void slotToggleBase64Content (bool);
 116   void slotMenuItemHovered (QAction *);
 117   void slotStatusMessage (QString, void *);
 118   void slotBusy (int, bool);
 119   void slotSocketOptions ();
 120   void slotGeneralOptions ();
 121   void slotClientList ();
 122   void slotConnectSocket ();
 123   void slotDisconnectSocket ();
 124   void slotOpenFile ();
 125   void slotOpenFileDone (int);
 126   void slotOpenForm ();
 127   void slotCloseFile ();
 128   void slotDoOpenFile ();
 129   void slotEditAttributes ();
 130   void slotEditTargetAttributes (bool);
 131   void slotRefreshAttributes ();
 132   void slotAttrSearchAndReplace ();
 133   void slotAttrSearchAndReplaceChanged (const QString &);
 134   void slotAttributeSelected (QListWidgetItem * item, QListWidgetItem * old);
 135   void slotAttributeEditorClosed (QWidget *,
 136                             QAbstractItemDelegate::EndEditHint);
 137   void slotConfirmNewAttribute (QWidget *);
 138   void slotNewAttribute ();
 139   void slotDeleteAttribute ();
 140   void setElementColors (QTreeWidgetItem *, bool reset = true,
 141                          bool target = false);
 142   void slotTabChanged (int);
 143   void slotClientListDone (int);
 144   void slotGeneralOptionsDone (int);
 145   void slotButtonLabels (bool);
 146   void slotSaveDocument ();
 147   void slotSaveExtended ();
 148   void slotPasswordContentChanged ();
 149   void slotClipboardAttribute ();
 150   void slotClipboardElementPath ();
 151   void slotClearClipboard ();
 152   void slotClipboardTimer ();
 153   void slotReleaseTimer();
 154   void slotExecuteCommand ();
 155   void slotCommandContentChanged ();
 156   void slotCommandResultContentChanged ();
 157   void slotCommandAnchorClicked (const QUrl &);
 158   void slotCommandHelp ();
 159   void slotClearCommand ();
 160   void slotCommandInquireStateChanged (int);
 161   void slotCommandInquireFilename ();
 162   void slotSearchCommandResults ();
 163   void slotCommandHistoryChanged (int);
 164   void slotSaveCommandResult ();
 165   void slotEditContent ();
 166   void slotCreatePasswordAttribute ();
 167   void slotFileOptions ();
 168   void slotFileOptionsDone (int);
 169   void slotVersion ();
 170   void slotCommandResult (PwmdCommandQueueItem *, QString, gpg_error_t, bool);
 171   void slotKnownHostCallback (void *data, const char *host, const char *key,
 172                               size_t len);
 173   void slotUpdateConnectTimer ();
 174   void slotCancel ();
 175   void slotChangeExpire ();
 176   void slotItemSelectionChanged ();
 177 #ifdef Q_OS_ANDROID
 178   void slotAndroidConnectionError (gpg_error_t);
 179   void slotAndroidConnectResult (PwmdRemoteHost, int);
 180   void slotAndroidConnectReady (PwmdRemoteHost);
 181   void slotAndroidAuthenticated ();
 182   void slotApplicationStateChanged (Qt::ApplicationState);
 183 #endif
 184   void slotToggleMultiMode (bool);
 185   void showError (gpg_error_t);
 186
 187  signals:
 188   void knownHostRc (gpg_error_t);
 189   void attributesRetrieved (QTreeWidgetItem *);
 190   void mainClientLockStateChanged (bool);
 191
 192  private:
 193   friend class PwmdFileOptionsDialog;
 194
 195   typedef struct {
 196       QString content;
 197       QString name;
 198       QString password;
 199       QTreeWidgetItem *item;
 200       QListWidgetItem *listItem;
 201   } AttributeFinalizeT;
 202
 203   typedef enum
 204   {
 205     ButtonStateOptions,
 206     ButtonStateOpenFile,
 207     ButtonStateSave,
 208     ButtonStateMain
 209   } MainButtonState;
 210
 211   friend class PwmdTreeWidget;
 212   friend class PwmdListWidget;
 213   friend class ApplicationForm;
 214   friend class PwmdPlainTextEdit;
 215
 216 /* Must match the order of buttons in a QToolBar. See setupToolbars(). */
 217   enum {
 218       FileToolBarOpen = 0,
 219       FileToolBarSave = 1,
 220       ElementToolBarCreate = 0,
 221       ElementToolBarDelete = 1,
 222       ElementToolBarRename = 2,
 223       ElementToolBarFind = 3,
 224       ContentToolBarInsert = 0,
 225       ContentToolBarSave = 1,
 226       ContentToolBarPassword = 2,
 227       ContentToolBarExpiry = 3,
 228       ContentToolBarOk = 5,
 229       ContentToolBarRefresh = 6,
 230       AttributeToolBarNew = 0,
 231       AttributeToolBarDelete = 1,
 232       AttributeToolBarOk = 3,
 233       AttributeToolBarRefresh = 4,
 234       PasswordToolBarInsert = 0,
 235       PasswordToolBarSave = 1,
 236       PasswordToolBarExpiry = 2,
 237       PasswordToolBarOk = 4,
 238       PasswordToolBarRefresh = 5,
 239       CommandToolBarSave = 0,
 240       CommandToolBarClear = 1,
 241       CommandToolBarOk = 3,
 242       CommandToolBarRefresh = 4,
 243       CommandToolBarHelp = 6
 244   };
 245
 246   void fixupEditContentOrAttributes (bool attrs = false);
 247   void fixupNextTabOrElement ();
 248   void setContent (const QString &, QTreeWidgetItem * = nullptr);
 249   void setAttributeContent (const QString &);
 250   QString elementPath (const QTreeWidgetItem *item, const QString & sep = "\t");
 251   QList < QTreeWidgetItem * >buildElementTree (QByteArray &sexp, bool = true);
 252   QList < QListWidgetItem * >buildFilenameTree (gpg_error_t &);
 253   bool createAttributeCache (QTreeWidgetItem *, const QString &);
 254   bool doSaveContent (bool queue = false, bool save = false,
 255                       bool exteneded = false, int *which = nullptr,
 256                       bool force = false);
 257   void setAttributeContentOnce (QTreeWidgetItem *item, const QString &path,
 258                                 const QString &value, bool save, bool extended,
 259                                 bool queue);
 260   void setBusy (bool b = true, int cmdId = PwmdCmdIdInvalid);
 261   void setConnected (bool = true, Pwmd::ConnectionState = Pwmd::Connected);
 262   void saveDocument (bool exteneded = false);
 263   bool doFinished (bool &no, bool ignore = false);
 264   bool refreshElementTree (bool target = false);
 265   void refreshElementTreeFinalize (QByteArray &);
 266   bool editElements ();
 267   bool hasBadTarget (QTreeWidgetItem *, const QString &, const QString &);
 268   bool badTarget (const QTreeWidgetItem *);
 269   bool targetLoop (const QTreeWidgetItem *);
 270   QTreeWidgetItem *findElement (const QString &, QTreeWidgetItem * = 0,
 271                                 bool = false, PwmdTreeWidget * = nullptr);
 272   void elementSelected (QTreeWidgetItem *, bool refresh = false,
 273                         QTreeWidgetItem * = 0);
 274   void elementSelectedFinalize (QTreeWidgetItem *, const QString &,
 275                                 bool attrs = false);
 276   void sortAttributes ();
 277   bool refreshAttributeList (QTreeWidgetItem *, bool force = false,
 278                              bool queue = false, bool fromTree = false);
 279   void refreshAttributeListFinalize (QTreeWidgetItem *, const QString &,
 280                                      bool create = true, bool fromTree = false);
 281   bool hasTarget (const QTreeWidgetItem *, bool parent = false);
 282   QString elementName (const QTreeWidgetItem *);
 283   void setItemText (QTreeWidgetItem *, const QString &, bool hasTarget = false);
 284   void tabify (QPlainTextEdit *);
 285   void setOpen (bool = true);
 286   void popupContextMenu ();
 287   void resetSelectedItems ();
 288   bool isParentOf (QTreeWidgetItem *, QTreeWidgetItem *);
 289   void setModified (bool = true);
 290   void setModifiedContent (bool b = true);
 291   void setFileModified (bool = true);
 292   QString updateSocket ();
 293   void createNewElement (bool root = false, bool sibling = false);
 294   bool event (QEvent *);
 295   QTreeWidgetItem *resolveTargets (QTreeWidgetItem *);
 296   QTreeWidgetItem *resolveElementPath (QTreeWidgetItem *);
 297   void setAttribute (QTreeWidgetItem *, const QString &, const QString & = 0,
 298                      bool update = false);
 299   void removeAttribute (QTreeWidgetItem *, const QString &,
 300                         bool update = false);
 301   bool deleteAttribute (QTreeWidgetItem *, const QString &name, bool queuequeue  = false);
 302   void deleteAttributeFinalize (QTreeWidgetItem *, const QString &);
 303   void setMainButtons (MainButtonState);
 304   void setTimeLabels (QTreeWidgetItem *, bool needsRefresh = false);
 305   void clearElementTree (QTreeWidget *);
 306   gpg_error_t doDndCopyElement (const QString & src, const QString & dst,
 307                                 bool queue = false);
 308   void dndCopyMoveElementFinalize (const QString & = 0);
 309   void dndCreateTargetFinalize ();
 310   void updateContentPointer (QTreeWidgetItem *, PwmdElementContent *);
 311   void editAttributes (bool resolve = false, QTreeWidgetItem * = 0);
 312   QString toBase64 (QTreeWidgetItem *, QByteArray &);
 313   bool setNewAttribute (QTreeWidgetItem *, QString, QString = 0, bool fromSlot = false, bool queue = false);
 314   void setNewAttributeFinalize (AttributeFinalizeT *, bool fromSlot = false);
 315   void updateSocketOptions ();
 316   void updateCacheTimeout (const QString &);
 317   void toggleOtherTabs (bool);
 318   bool isElementOwner (QTreeWidgetItem *, bool secondary = false);
 319   bool hasOwnerOfItemSelected ();
 320   static gpg_error_t badPassphraseCallback (void *, bool);
 321   void setElementStatusTip (QTreeWidgetItem *);
 322   QString clientState (unsigned);
 323   void updateStateForClient (QString);
 324   void clearClientList (QTreeWidget *);
 325   void readConfigSettings (QString &filename, QString &sock, bool init = true);
 326   void closeEvent (QCloseEvent *);
 327   bool confirmQuit ();
 328   void setupToolbars ();
 329   void setupToolBarLabels (bool b);
 330   void setElementItemsEnabled (QTreeWidgetItem *, bool, QTreeWidgetItem * = 0);
 331   void setContentItemsEnabled (bool = true, bool = true, QTreeWidgetItem * = 0);
 332   void setPasswordItemsEnabled (bool = true, QTreeWidgetItem * = 0);
 333   void setAttributeItemsEnabled (bool = true, QTreeWidgetItem * = 0);
 334   void setCommandItemsEnabled (bool = true, QTreeWidgetItem * = 0);
 335   void clearAttributeTab ();
 336   void setCommandInquireFilename (const QString &);
 337   bool fixupToolBar (QToolBar *, int, bool enable, bool test = false,
 338                      QWidget ** = 0);
 339   bool fixupMenu (QMenu *, int which, bool enable, int checked = -1,
 340                   bool test = false);
 341   void fixupMultiToolbar ();
 342   void ignoreErrors (PwmdCommandQueueItem *, bool = false);
 343   bool needsUpdate ();
 344   void cacheContentToggled ();
 345   void saveAttrContentFinalize (const QString &path, AttributeFinalizeT *);
 346   void saveContentFinalize (QTreeWidgetItem *, const QString &content,
 347                             bool password);
 348   void savePasswordContentFinalize (QTreeWidgetItem *, const QString &type);
 349   void renameElementFinalize ();
 350   void newElementFinalize (QString path);
 351   void deleteElementFinalize (PwmdCommandQueueItem *);
 352   void invokingUserFinalize (const QString &);
 353   void currentUserFinalize (const QString &);
 354   void reloadFinalize ();
 355   void openFileFinalize (gpg_error_t);
 356   void openFormFinalize (QByteArray &, const QString &, const QString &);
 357   void setWindowTitle (bool);
 358   void updateConnectTimer (bool reset = false, bool cancel = false);
 359   void updatePasswordAttribute (QTreeWidgetItem *, bool queue = false);
 360   bool isInvoker ();
 361   void updateElementExpiry (long);
 362   void setElementExpireLabel (long);
 363   void updateTargetAttributes (QTreeWidgetItem *item, const QString &name,
 364                                const QString &value, bool remove = false);
 365   bool attributeIsEditable (QTreeWidgetItem *, QListWidgetItem *);
 366   bool isReservedAttribute (const QString &);
 367   bool isProtectedAttribute (const QString &);
 368   int previousAttributeIndex ();
 369   void updateBusyStatusBar (Pwmd::ConnectionState);
 370   QTreeWidgetItem *findElementText (const QString &str,
 371                                     bool elements = true,
 372                                     bool attrs = false,
 373                                     bool attrValues = false);
 374   void findElementCommon (bool previous);
 375   void setCurrentElement (QTreeWidgetItem *);
 376   void saveExpandedItemList ();
 377   void setClipboard (const QString &);
 378   bool hasQueuedRefreshTree ();
 379   bool hasMultiSelection ();
 380   bool hasSingleSelection ();
 381   QTreeWidgetItem *firstSelectedItem ();
 382
 383   Pwmd *pwm;
 384   Pwmd::ConnectionState state;
 385   QString _filename;
 386   QString _socket;
 387   Ui::PwmdMainWindow ui;
 388   QTreeWidgetItem *attributeElement;
 389   QTreeWidgetItem *selectedElement;
 390   QTreeWidgetItem *previousElement;
 391   QTreeWidgetItem *targetAttributeElement;
 392   QTreeWidgetItem *copyElement;
 393   QTreeWidgetItem *oldSelectedItem;
 394   QColor previousElementColor;
 395   QColor previousElementColorBg;
 396   QString selectedElementPath;
 397   QTreeWidgetItem *dropElement;
 398   QTreeWidgetItem *newElement;
 399   QListWidgetItem *selectedAttribute;
 400   QListWidgetItem *newAttribute;
 401   QListWidgetItem *newFilename;
 402   QString selectedFilename;
 403   unsigned iterationsOrig;
 404   PwmdRemoteHost currentHostData;
 405   bool importRoot;
 406   QWidget *previousRightPage;
 407   QColor targetColor;
 408   QColor invalidTargetColor;
 409   QColor hilightColor;
 410   QColor targetLoopColor;
 411   QColor permissionsColor;
 412   QColor targetColorBg;
 413   QColor invalidTargetColorBg;
 414   QColor hilightColorBg;
 415   QColor targetLoopColorBg;
 416   QColor permissionsColorBg;
 417   bool sortElementTree;
 418   QString clientName;
 419   int dndOperation;
 420   int ipVersion;
 421   QTimer *clipboardTimer;
 422   QTimer *releaseTimer;
 423   QClipboard *clipboard;
 424   unsigned clipboardTimeout;
 425   bool newFile;
 426   QStringList connectParameters;
 427   bool editTargetAttributes;
 428   unsigned features;            // pwmd_features()
 429   int pinentry_try;
 430   MainButtonState mainButtonState;
 431   QStringList invokingUser;
 432   QString connectedUser;
 433   PwmdClientDialog *clientDialog;
 434   PwmdOptionsDialog *optionsDialog;
 435   QToolBar *fileToolBar;
 436   QToolBar *editToolBar;
 437   QToolBar *elementToolBar;
 438   QToolBar *contentToolBar;
 439   QToolBar *passwordToolBar;
 440   QToolBar *attributeToolBar;
 441   QToolBar *commandToolBar;
 442   bool cacheContent;
 443   int lockTimeout;
 444   QProgressBar *progressBar;
 445   PwmdFileOptionsDialog *fileOptionsDialog;
 446   PwmdOpenDialog *openDialog;
 447   QPushButton *cancelButton;
 448   QString previousAttributeText;
 449   bool isBusy;
 450   QString commandInquireFilename;
 451   QAction *findElementAction;
 452   QWidget *findElementWidget;
 453   unsigned nSelectedElements;
 454   bool searchAndReplace;
 455   PwmdSearchDialog *advancedSearchDialog;
 456   QLabel *searchResultStatusBarLabel;
 457 #ifdef Q_OS_ANDROID
 458   bool androidAuthenticating;
 459 #endif
 460
 461   typedef enum {
 462       DndNone, DndCopy, DndMove, DndTarget, DndAny
 463   } DndOperation;
 464 };
 465
 466 class AttributesRetrievedEvent : public QEvent
 467 {
 468  public:
 469   AttributesRetrievedEvent (QEvent::Type t) : QEvent (t)
 470   {
 471     _item = nullptr;
 472   };
 473
 474   void setItem (QTreeWidgetItem *item)
 475     {
 476       _item = item;
 477     };
 478
 479   QTreeWidgetItem *item ()
 480     {
 481       return _item;
 482     };
 483
 484  private:
 485   QTreeWidgetItem *_item;
 486 };
 487
 488 class PwmdPasswordOnlyValidate:public QValidator
 489 {
 490  Q_OBJECT
 491  public:
 492   State validate (QString & in, int &pos) const
 493   {
 494     (void) pos;
 495
 496     for (int i = 0; i < in.length (); i++)
 497       {
 498         if (in.count (in.at (i)) > 1)
 499           return Invalid;
 500       }
 501
 502     return Acceptable;
 503   };
 504 };
 505
 506 class PwmdCommandHistoryData
 507 {
 508  public:
 509   PwmdCommandHistoryData (QString args, bool inquire = false,
 510                           QString inquireCmd = 0, QString inquireFilename = 0)
 511     {
 512       _args = args;
 513       _inquire = inquire;
 514       _inquireCmd = inquireCmd;
 515       _inquireFilename = inquireFilename;
 516     };
 517   ~PwmdCommandHistoryData () {};
 518
 519   bool isInquire ()
 520     {
 521       return _inquire;
 522     };
 523
 524   const QString &inquireCmd ()
 525     {
 526       return _inquireCmd;
 527     };
 528
 529   const QString &args ()
 530     {
 531       return _args;
 532     };
 533
 534   const QString &inquireFilename ()
 535     {
 536       return _inquireFilename;
 537     };
 538
 539  private:
 540   bool _inquire;
 541   QString _args;
 542   QString _inquireCmd;
 543   QString _inquireFilename;
 544 };
 545
 546 Q_DECLARE_METATYPE (PwmdCommandHistoryData *);
 547
 548 class SearchResult
 549 {
 550   public:
 551     enum {
 552         None = 0x0,
 553         Element = 0x1,
 554         Attr = 0x2,
 555         AttrValue = 0x4
 556     } SearchResultType;
 557
 558     SearchResult (QTreeWidgetItem *e, int type, QList <int>attrs)
 559       {
 560         _element = e;
 561         _attrs = attrs;
 562         _curAttr = reset ();
 563         _type = type;
 564       };
 565     ~SearchResult () {};
 566
 567     const QList <int> attrs ()
 568       {
 569         return _attrs;
 570       };
 571
 572     int resultType ()
 573       {
 574         return _type;
 575       };
 576
 577     QTreeWidgetItem *element ()
 578       {
 579         return _element;
 580       };
 581
 582     int nextAttr ()
 583       {
 584         int n = _attrs.indexOf (curAttr ());
 585         if (n < 0 || n+1 >= _attrs.count ())
 586           {
 587             _curAttr = -1;
 588             return curAttr ();
 589           }
 590
 591         _curAttr = _attrs.at (n+1);
 592         return curAttr ();
 593       };
 594
 595     int curAttr ()
 596       {
 597         return _curAttr;
 598       };
 599
 600     int lastAttr ()
 601       {
 602         if (_attrs.count () == 0)
 603           return -1;
 604
 605         _curAttr = _attrs.last ();
 606         return curAttr ();
 607       };
 608
 609     int prevAttr ()
 610       {
 611         int n = _attrs.indexOf (curAttr ());
 612         if (n < 0 || n-1 < 0)
 613           {
 614             _curAttr = -1;
 615             return curAttr ();
 616           }
 617
 618         _curAttr = _attrs.at (n-1);
 619         return curAttr ();
 620       };
 621
 622     int reset ()
 623       {
 624         _curAttr = _attrs.count () ? _attrs.at (0) : -1;
 625         return curAttr ();
 626       };
 627
 628   private:
 629     QTreeWidgetItem *_element;
 630     QList <int>_attrs;
 631     int _curAttr;
 632     int _type;
 633 };
 634
 635 #endif